Bookbinding



E. A. CLAUSS Am) 0. H. ADAMSON.

Patented Aug. 15, 1922.

[NV NTORS UNITED STATES PATENT OFFICE.

EUGENE A. OLA'USS, OF PROVIDENCE, AND DAVID E. ADAliISON, OF CRANSTON, RHODE ISLAND. I

BOOKBINDING.

To all whom it may concern:

Be it known that we, EUGENE. A. CLAUSS and DAVID H. ADAMSON, citizens of the. United States, residing at Providence and Cranston, in the county of Providence and State of Rhode Island, respectively, have 1nvented new and useful mproveinents 1n Bookbinding, of which the following is a specification. 1

This invention relates to certain new and useful improvements in book binding, and the primary object thereof is to simplify the binding of the leaves or sheets, and to rovide an improved structure where1n the emble back is reinforced, and at the same time permits of opening .of the book so that the leaves will lie flat.

The invention briefly involves first the formation of the leaves or sheets into a pad or stack; followed by the application of a flexible. gum or cement to the back edges of the stack, and the application of an open mesh cloth to the gum or cement. Two or more holes are then formed, by drilling through the pad, and tapes then passed through the holes with their ends cemented to the board or other material forming the book cover or sides, after which the book is finished in the ordinary manner of binding.

The invention also aims to provide a method of book binding which is simple and can beeasily and quickly practiced, with the aim of economizing in the cost of the binding of books.

Further and other objects will be later set forth and manifested in the course of the following description.

In the drawings:

Figure 1 is a perspective view of a pile or stack of leaves with the gum and mesh cloth applied thereto, and after being perforated;

Figure 2 is a fragmentary transverse sec. tion of the completed book; and

Figure 3 is a similar view with the book in open position.

In proceeding in accordance with the present invention the leaves or sheets 1, are stacked, or arranged in a pile or pad formation as depicted in Figure 1 of the drawing, following which a gum or cement 2 is applied to the rear sideedges of the p1le or stack. Obviously the sheets will be held or Specification of Letters Patent.

Application filed April 1,

Patented Aug. 15, 1922.

1921. Serial No. 457,712.

clamped in tight formation during the application of the gum or cement, the latter being of a flexible nature or having flexible properties. A mesh cloth strip 3 is then applied to the gum or cement as shown in Figure 1 of the drawing, the strip being of the same size as the rear side edge of the stack or pile, or approximately of such size. Holes 4 are next drilled or otherwise formed through the pile or stack adjacent the rear side edge thereof, following which pieces of tape 5 are passed through the holes and have their ends extended outwardly toward the back proper 9 and then extended inwardly and their terminals 6 cemented to the inner faces of the side boards or front and back covers 7 of the book. The usual finishing sheets 8 are applied to theinner faces of the cover 7 and overlap the free ends of the tapes so as to conceal the latter and to also assist in securing same in position.

It will now be apparent that the tape acts as a reinforcement to the flexible backing 2-3, and at the same time allows of opening of the book so that the leaves will lie flat as depicted in Figure 3 of the drawing.

The tape supports the pile or stack of the leaves or sheets both at the top and at the bottom of the book, and acts as the only means of supportingv the pile or stack from the cover 7. In this way a most simple and economical method of book binding is afforded, which dispenses with stitching or the like, and at the same time enables the binding to be performed very expeditiously.

From Figure 2 of the drawing it will be seen that the stack of leaves or sheets are held at the rear thereof by the tape spaced from the front and back 77 as well as from the back proper 9 which connect the side boards or front and back 77. Thus when the book is open as shown in Figure 3 the tapes move the back 3 of the stack up from the back proper 9, thus permitting the leaves to lie flat when the book is open.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is In a book, a stack of leaves having a cloth strip attached to the rear side edge thereof by a flexible adhesive and having perforabeck and side hoards connected thereto, and In testimony whereof wehave signed our tapes passed through the perforations end nemesto this specification in the presence of 10 having their ends turned outwardly end two subscribing witnesses. then inwardly and their terminals cemented EUGENE A. CLAUSE).

5 to the side boards in a position to holdthe DAVID H. ADAMSQN.

reer side edge of the stack spaced from the Witnesses: hack in both open and closed position of the MAmoN A. Kmesmr, hook. J, A. MILLER. 

